Black-capped Antwren (Herpsilochmus atricapillus) - HBW 8, p. 602

Taxonomy:Herpsilochmus atricapillus Pelzeln, 1868, Porto do Rio Paraná (probably = União), São Paulo, Brazil. Until recently treated as conspecific with H. sellowi and H. pileatus; these three are considered to belong to a clade that also includes H. motacilloides and H. parkeri. Although no geographical races described, plumage and vocal variations exist across its extensive range; further research required. Monotypic.